Greetings,
The Fabl programming language is now available for download from http://fabl.net under an open source license (BSD). There is also an online expression evaluator for casual experimentation.
Fabl is tailored for RDF programming: RDF resources are its native objects, and OWL is its native type system. Fabl programs are themselves RDF resources, although parsed from a conventional Javascript-like syntax. The motivation is twofold: to make RDF-related programming simpler, and to allow free embedding of computional descriptions in RDF content.
The current version is a beta test. Comments and problem reports are very much appreciated, and should be sent to info@fabl.net
Chris Goad